Over the years, as new uses for copper have been discovered, so too have an entire range of copper-based alloys developed to meet specific needs and applications.

Copper alloys are metal alloys that have copper as their principal component. They have high resistance against corrosion. The best known traditional types are bronze, where tin is a significant addition, and brass, using zinc instead. Both of these are imprecise terms, having been commonly referred to as lattens in the past. Today we tend to substitute the term copper alloy instead.